Navigation system using wireless paging network and method of providing traffic information therefor

• US 20050038596A1
• Filed: 06/01/2004
• Published: 02/17/2005
• Est. Priority Date: 08/14/2003
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Yang, Sung-Chul, Choi, Yong-Ik
• Application Number:
  US10/858,256
• Publication Number:
  US 20050038596A1
• Time in Patent Office: Days
• US Class Current: 701/200
• CPC Class Codes: G01C 21/20 Instruments for performing navigational calculations G01C21/24, G01C21/26 take precedence
• CPC Class Codes: G08G 1/096811 where the route is computed offboard
• CPC Class Codes: G08G 1/096844 where the complete route is dynamically recomputed based on new data
• CPC Class Codes: G08G 1/096872 where instructions are given per voice
• CPC Class Codes: G08G 1/096883 where input information is obtained using a mobile device, e.g. a mobile phone, a PDA

Abstract

A navigation system using a wireless paging network and a traffic information providing method in the navigation system. The navigation system has a traffic information management server, a paging server and a navigation terminal. The paging server broadcasts real-time information including traffic information and living information (e.g., breaking news) and the navigation terminal provides traffic information with the real-time information to a user. Therefore, no extra communication charges are imposed and real-time traffic information and other living information (e.g., breaking news, incident information, etc.) are provided together with route guidance information.

Claims

1. A navigation system comprising:

a traffic information management server for storing and managing real-time information including traffic information and living information from an external information server;

a paging server for transmitting the real-time information stored in the traffic information management server via a wireless paging network; and

a navigation terminal for receiving the real-time information from the paging server and providing the traffic information together with the real-time information to a user.

2. The navigation system of claim 1, wherein the traffic information management server stores the real-time information separately as real-time numerical information and real-time text information, the real-time numerical information representing a speed at a point corresponding to each node and link on a digital map and being used for a route computation, and the real-time text information being displayed in text through the navigation terminal.

3. The navigation system of claim 1, wherein the traffic information management server stores and manages the real-time information for a predetermined valid period.

4. The navigation system of claim 1, wherein the wireless paging network uses a high-speed wireless paging scheme.

5. The navigation system of claim 1, wherein the paging server transmits the real-time information to one of a plurality of users by a broadcast message and a predetermined user by an individual message.

6. The navigation system of claim 1, wherein the navigation terminal comprises:

an information message processor for receiving from the paging server the real-time information and additional information for controlling and storing the real-time information and the additional information; and

a navigation processor for calculating an optimum route based on the real-time information a upon request from the user and guiding the user to the optimum route.

7. The navigation system of claim 6, wherein the information message processor comprises:

a communication modem for receiving the real-time information and the additional information from the paging server;

a message analyzer for decoding the real-time and the additional information received from the communication modem and classifying the decoded information into the real-time numerical information, the real-time text information, and the additional information; and

a message storage for separately storing the real-time numerical information, the real-time text information, and the additional information.

8. The navigation system of claim 7, wherein the communication modem is a radio pager.

9. The navigation system of claim 6, wherein the information message processor is configured as a separate device, which uses a power supply within a vehicle and interacts with the navigation processor via one of a UART (Universal Asynchronous Receiver Transmitter) and a USB (Universal Serial Bus) interface.

10. A navigation terminal comprising:

an information message processor for receiving real-time information and additional information for controlling from a wireless paging network and storing the real-time information and the additional information; and

a navigation processor for calculating an optimum route based on the real-time information, upon a request from a user, and guiding the user via the optimum route.

11. The navigation terminal of claim 10, wherein the information message processor comprises:

a communication modem for receiving the real-time information and the additional information from the wireless paging network;

a message analyzer for decoding the real-time and the additional information received from the communication modem and classifying the decoded information into real-time numerical information, real-time text information, and the additional information; and

a message storage for separately storing the real-time numerical information, the real-time text information, and the additional information.

12. The navigation terminal of claim 11, wherein the communication modem is a radio pager.

13. The navigation terminal of claim 10, wherein the information message processor is configured as a separate device, which uses a power supply within a vehicle and interacts with the navigation processor via one of a UART (Universal Asynchronous Receiver Transmitter) and a USB (Universal Serial Bus) interface.

14. A method of providing traffic information in a navigation system, comprising the steps of:

(1) storing and managing real-time information, including traffic information and living information, from an wireless paging network;

(2) decoding the real-time information and determining a type of the real-time information by analyzing the real-time information;

(3) storing the real-time information separately according to the type of the real-time information;

(4) calculating an optimum route based on the real-time information, upon a request for a route guidance service; and

(5) providing the route guidance service using the calculated route information together with the real-time information.

15. The method of claim 14, wherein the real-time information received in the step (1) is the real-time numerical information containing fields including at least one of a Protocol Identification (ID), an Area ID, a Number of Node, a Node ID, a Number of Link, a Link ID, and a Speed.

16. The method of claim 14, wherein the real-time information received in the step (1) is the real-time text information containing fields including at least one of a Protocol Identification (ID), a Message Type, an Incident ID, a Latitude, a Longitude, a Direction, an Occurred Month, an Occurred Date, an Occurred Hour, an Occurred Minute, a Target Month, a Target Hour, a Target Minute, and a Title of Incident.

17. The method of claim 14, wherein it is determined in the step (2) whether the real-time information is the real-time numerical information representing a speed at a point corresponding to each node and link on a digital map and being used for the route computation service, or the real-time text information being displayed in text.

18. The method of claim 17, wherein the optimum route is calculated based on the real-time numerical information in the step (4).

19. The method of claim 17, wherein in an absence of the stored real-time numerical information, a numerical message is received and stored in the step (4).

20. The method of claim 18, wherein in an absence of the stored real-time numerical information, a numerical message is received and stored in the step (4).

21. The method of claim 14, wherein the step (5) comprises the steps of:

periodically determining whether the real-time information has been received from the wireless paging network, while the calculated optimum path is notified in the step (4);

determining the type of the real-time information, upon receipt of the real-time information; and

displaying the real-time information on a route guidance window, if the real-time information is the real-time text information.

22. The method of claim 14, wherein the step (5) comprises the steps of:

periodically determining whether the real-time text information has been received from the wireless paging network, while the calculated optimum path is notified in the step (4); and

displaying the real-time text information on a route guidance window when the real-time text information has been received.